Xerox Phaser 7800-lines on copies Service Dispatch Coordinator - March 10, 2016 20:07 Solutions for : Colored Lines in All Colors Perform the Fuser Cleaning Procedure Select the [Tools] tab, and then select [Troubleshooting]. Select [Resolve Problems]. Select [Smears, Smudges, and Streaks]. Select [Start Cleaning]. Several blank pages will feed through the printer to remove any Toner (Dry Ink) accumulated on the Fuser.